Most data professionals I’ve met work in two modes: we plan for our day, and we react to the situations around us. I’m staring at my list of things that I need to do today right now, which is my planned work. Of course, I have no idea how much of that will really get done – it’s optimistic to be sure. On the other hand I have several systems I ...

Yesterday I blogged about changing a Primary Key (PK) during the design phase, and before you have data in the database. Even then, it’s not trivial to change the data type or column(s) that make(s) up the PK. When you have data in that Primary Key and/or you have Foreign Keys (FK) that point to a PK field, this becomes a much more involved ...